# CVE-2020-8330: Denial of service in Printer LJ4010DN

> A remote attacker can cause a denial of service on Lenovo LJ4010DN printers by sending crafted packets, requiring a reboot to restore functionality.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 May 2020
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-3gcp-ghxf-55qh

## What is CVE-2020-8330?

CVE-2020-8330 is a medium-severity denial of service vulnerability in Lenovo Printer LJ4010DN, published on 28 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A denial of service vulnerability was reported in the firmware prior to version 1.01 used in Lenovo Printer LJ4010DN that could be triggered by a remote user sending a crafted packet to the device, preventing subsequent print jobs until the printer is rebooted.

## Which versions are affected by CVE-2020-8330?

It affects 3 products.


Products: Lenovo Lj4010dn Firmware, Lenovo Lj6700dn Firmware, Lenovo M8960dnf Firmware.

## How do I fix CVE-2020-8330?

No fix has been published for CVE-2020-8330 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-8330 being exploited?

There is no known exploitation of CVE-2020-8330 in the wild and no public exploit code.

## Other vulnerabilities in Lenovo Printer LJ4010DN

- [CVE-2020-8329](https://insights.sbomify.com/CVE-2020-8329/): Denial of service in Printer LJ4010DN (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-8330 and fix it if it is affected.

What it is: CVE-2020-8330 is a medium-severity denial of service vulnerability in Lenovo Printer LJ4010DN, published on 28 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-8330 in the wild and no public exploit code.

Affected product: Lenovo Printer LJ4010DN. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2020-8330/ (Markdown: https://insights.sbomify.com/CVE-2020-8330/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-8330
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-8330
- OSV: https://osv.dev/vulnerability/CVE-2020-8330

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-8330/
Summaries are generated and may contain mistakes; the official description above is the record.